(The drop-down menus do not work on iOS devices.)
This web site was written during 2003-2004.
It is mostly the interpretation page that has been revised since then.
Technically there is nothing new here. But this web site
is different in the way it assembles and presents information.
The basic embryology is drawn from undergraduate
text books on physiology and developmental biology.
Data for the attrition of early embryos,
comes from research sources.
Please send suggestions and critique to
Dr. Edward H. Takken, PhD
2017 letter to Senate Judiciary Committee